Standard No.:	GB/T 5443-1985
English Name:	The test methods for the technical specifications of ringing and tone for automatic telephone switching network
Chinese Name:	电话自动交换网铃流和信号音技术指标测试方法
Chinese Classification:	M15    Communication network performance index and testing
Professional Classification:	GB    National Standard
ICS Classification:	33.040.30 33.040.30    Switching and signalling systems 33.040.30
Issued by:	AQSIQ
Issued on:	1985-10-30
Implemented on:	1986-6-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	244.00
Delivery:	via email in 1~3 business day

本测试方法以GB3380-82《电话自动交换网铃流和信号音》为依据。主要适用于纵横（或准电子式）交换局。测试内容包括：a.铃流电压、频率、谐波失真及断续时间；b.各种信号音发送电平、频率、谐波失真及断续时间。